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A phase during adulthood when a man first develops moobs. Usually begins in mid to late 30s but has been known to happen in late 20s in some male office workers.
Larry: Holy crap Frank, I didn't know you'd reached mooberty already, your moobs are huge!

Frank: yeah it sucks, I've started getting moobsweat too. I wish my mother would buy me my first man bra.
mooberty by Clive London November 29, 2007
Related Words
The only way to explain the meaning of the word Mebert, is in the Mebert language, which consists only of the word Mebert, said in various pitches, volumes, and inflections.
Mom: How was your day?
Son: Mebert...

Girlfriend: Would you like to make love?
Boy: MEBERT!
Mebert by Glue548 June 5, 2007

MOBERTUCKY MUFFLER 

When you're going down on your girlfriend put your lips inside her pussy and blow as hard as you can until you hear the sounds of a Mobertucky Muffler.
I left the Wabash with that girl from South Park and gave her a Mobertucky Muffler behind a dumpster.
The hidden character that appears in every fourh pannel in all Dilbert comics*



*Does not appear in any Dilbert comic.
Wow that's one freaking big Moobert you got over there.
Moobert by zxcvbnmnbvcxz123 March 11, 2003

Moebetes 

Derived from the combination of the words moe and diabetes, moebetes is an emotional condition in which anime fans are exposed to such great amounts of moe cuteness that they end up with constantly high moe levels, similar to how a diabetic has high blood sugar.

Similarly, one who suffers from (if you can call it suffering) moebetes is identified as a moebetic
"Hello, I'm Wilford Brimley, and I have moebetes"
--Wilford Brimley, shortly after watching the first two seasons of K-on! back to back
Moebetes by imtheonlysane1here April 22, 2011
American Idol Season 8 contestant, Adam Lambert's, mother. Most fans call Adam's mother -Leila Lambert- this.
Person 1: -sees Leila- OMG IT'S MOMBERT!!!1!
Mombert by This is my username March 26, 2010